Yes, it's possible to use a water pipe, though you run the risk of losing some of it into the piece! Someone correct me if I'm wrong, but I've always thought that if you're going to layer spice over any other non-psychoactive herb, it really just comes down to preference. Find something that tastes good. I personally like various "dream herbs" like calea zacatechichi because they seem to lessen any anxiety I may have. But hey, everyone is different
